Grain separator



Ap 14, 1931- A. E. BURDETT ET AL 7 GRAIN SEPARA'I'OR Filed May 15, 1929 3 Sheets-Sheet l Inventors Attorney P 14, 1931- A. E. BURDETT ET AL 1,800,597

GRAIN SEPARATOR Filed May 13, 1929 3 Sheets-Sheet 2 Q Attorney Apr A. E. BURDETT ET AL 1,800,597

GRAIN SEPARATOR Filed May 15, 1928 3 Sheets-Sheet 5 Inventors A itorney Patented Apr. 14, 1931 EWATEE ALBERT ERWIN BURDETT AND JOSEPH PATRICK GILLIGAN, OF ALAMEDA, CALIFORNIA GRAIN SEPARATOR i Application filed May 13,

The present invention relates to a grain separator and has for its prime object to provide in combination improved conveyor means, sieve means and air deflectors.

Another very important object of the invention resides in the provision of an apparatus of this nature which is comparatively simple in its construction, strong and durable, compact and convenient in its arrangement of parts, adjustable, and thoroughly efiicient and reliable in use and operation.

With the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing:

Figure 1 is a top plan View of the apparatus embodying the features of my invention, a

Figure 2 is a side elevation thereof,

Figure 3 is a vertical longitudinal section therethrough,

Figure 4 is a vertical transverse section taken substantially on the line 44 of F igure 3,

Figure 5 is a detail section taken substantially on the line 55 of Figure 3, and

Figure 6 is a perspective view showing one of the connecting plates of the conveyor.

Referring to the drawings in detail it will be seen that numerals 5 denote a pair of horizontal spaced parallel coextensive panel beams supported on uprights 6'and having bearings 7 at their ends in which are journaled shafts 8 and 9.

A roller 10 is mounted on the shaft 8 and a roller 11 is mounted on the shaft 9, said roller 11 being provided with cutaway intermediate portions one adjacent each end to form cams 12. A platform 14 is disposed between the beams 5 extending from approximately the center thereof to the ends adjacent roller 10.

An endless conveyor is trained over the rollers 10 and 11 and comprises two series of end plates and a single series of center plates 1929. Serial No. 362,662.

15. The end and center plates are connected by link rods 16 and the plates of the three series are connected by links 17.

A sieve 20 is mounted on angle irons 21 and a sieve 22 is mounted on angle irons 23. The angle irons 23 are mounted between the angle irons 21 and the sieve 22 is located below the sieve 20. The angle irons 23 are provided with longitudinal slots 24. Bolts 25 extend through longitudinal slots 26 in the beams 5, through openings in the angle iron 22 and through the slots 24 in the angle irons 23.

' A pair of links 27, 28 are associated with angle irons 23 and 21 at each side of the apparatus. The link 27 is pivotally engaged with angle iron 23 as at 29, pivotally engaged with link 28 as at 30 and the link 28 is pivotally engaged with angle irons 21 as at 31.

The pivot 31 is in the form of a bolt and is accessible through a slot 32 in the adjacent beam 5. Thus by loosening the bolts 31 and changing the angles of the links 27 and 28 in respect to each other the sieves may be adj usted with respect to each other to control the size of the particles which may pass therethrough.

Inverted members straddle the cams l2 and have rods 33 extending therefrom and adjustably connected as at 34 with angle irons 23.

A'pa-n or casing depends from the beams 5 having an inclined bottom 35 directed upwardly toward the roller 11 and atthe bottom end of the bottom 35 there is a collection receptacle 36 for the grain. A fan casing 38 communicates with the casing C through an opening 39 and has fan means 40 therein for blowing a draft of air through said opening Cranks 41 are pivotally mounted'in the side walls of the opening 39 and held in adjusted position by means of nuts 42. On the inner ends of these cranks are deflectors or baflie plates 43. Obviously the cranks 41 may be adjusted to relative positions of the plates 43 in respect to each other and control the currentof air from the fan to the casing G.

A casing 44 is mounted at one end of the apparatus over the roller 11 and extends below said roller, the bottom end forming a at spa'e'cl'points'Witli'slOtSelongated in the v collection 1;:7ough45 A pulley 45 is mounted en'one endef the shaft 8 andva pulley '47 is 1 ,mounted'on th-eouter end of the-shaft 48 of the'fan mgr V I I When'these pulleys a're'rOtatedin any pre-. f i ferreclxmanrier and grain isclropped on the plate or'plat form llit will be seen that the V endless conveyor will move this grain *o ver conthesieyes perniitti ngrthe grain to fall 10 throughlthe sieves into' the easing O and the vgoQd..g. 1in IVY- ll co lect; in e receptacle 36 I V .i liilethevehagfi r the likewill"beIbloWri into! the casing lfahd collect in the: trough 45. f 1 Itis thoughtthatitheeenstruetion, opera:

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